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use std::error::Error;

pub fn parse_num(value: &str) -> Result<u64, Box<dyn Error>> {
    let val = if value.trim().starts_with("0x") {
        u64::from_str_radix(&value[2..], 16)?
    } else {
        u64::from_str_radix(value, 10)?
    };
    Ok(val)
}